sensors: brcm: Remove wake_lock to fix the suspend issue

sensors: brcm: Remove wake_lock to fix the suspend issue

Even if TM2 doesn't use the wake_lock feature, the brcm sensor
drivers used the wake_lock and the the count of GPS interrupt
of brcm sensor is too much. The too much interrupt causes the
pending of reading the 'sys/power/wakeup_count' and then failed
to enter the suspend state by user-process.

This patch removes the wake_lock code to fix the suspend issue.

Change-Id: Ibd161a7a53adc4398f145e482a90efa35febbdb6
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>